(C-5)(c-4)=

Solution for (C-5)(c-4)= equation:

Simplifying
(C + -5)(c + -4) = 0

Reorder the terms:
(-5 + C)(c + -4) = 0

Reorder the terms:
(-5 + C)(-4 + c) = 0

Multiply (-5 + C) * (-4 + c)
(-5(-4 + c) + C(-4 + c)) = 0
((-4 * -5 + c * -5) + C(-4 + c)) = 0
((20 + -5c) + C(-4 + c)) = 0
(20 + -5c + (-4 * C + c * C)) = 0
(20 + -5c + (-4C + cC)) = 0

Reorder the terms:
(20 + -4C + -5c + cC) = 0
(20 + -4C + -5c + cC) = 0

Solving
20 + -4C + -5c + cC = 0

Solving for variable 'C'.

Move all terms containing C to the left, all other terms to the right.

Add '-20' to each side of the equation.
20 + -4C + -5c + -20 + cC = 0 + -20

Reorder the terms:
20 + -20 + -4C + -5c + cC = 0 + -20

Combine like terms: 20 + -20 = 0
0 + -4C + -5c + cC = 0 + -20
-4C + -5c + cC = 0 + -20

Combine like terms: 0 + -20 = -20
-4C + -5c + cC = -20

Add '5c' to each side of the equation.
-4C + -5c + 5c + cC = -20 + 5c

Combine like terms: -5c + 5c = 0
-4C + 0 + cC = -20 + 5c
-4C + cC = -20 + 5c

Reorder the terms:
20 + -4C + -5c + cC = -20 + 5c + 20 + -5c

Reorder the terms:
20 + -4C + -5c + cC = -20 + 20 + 5c + -5c

Combine like terms: -20 + 20 = 0
20 + -4C + -5c + cC = 0 + 5c + -5c
20 + -4C + -5c + cC = 5c + -5c

Combine like terms: 5c + -5c = 0
20 + -4C + -5c + cC = 0

The solution to this equation could not be determined.